<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片区域 -->
        <el-card class="box-card">
            <!-- 搜索和添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <div>
                        <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable @clear="getUserList">
                            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                        </el-input>
                    </div>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="adddialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="UpdateUserState(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180">
                    <template slot-scope="scope">
                        <!-- 编辑按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditUserDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="delUser(scope.row.id)"></el-button>
                        <!-- 角色分配按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRoleDialog(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
            <!-- 添加用户区域 -->
            <el-dialog title="添加用户"
                :visible.sync="adddialogVisible"
                width="50%"
                @close="addDialogClose">
                <!-- 内容主体区域 -->
                <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="addForm.username"></el-input>
                    </el-form-item>
                    <el-form-item label="密码" prop="password">
                        <el-input type="password" v-model="addForm.password"></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="addForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机" prop="mobile">
                        <el-input v-model="addForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部区域 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="adddialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="addUser">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 编辑用户区域 -->
            <el-dialog
                title="编辑用户"
                :visible.sync="editDialogVisible"
                width="50%" @close="editFormClose">
                <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                    <el-form-item label="用户名">
                        <el-input v-model="editForm.username" disabled></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="editForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机" prop="mobile">
                        <el-input v-model="editForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUser">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 角色分配对话框 -->
            <el-dialog
                title="分配角色"
                :visible.sync="setRoleDiologVisible"
                width="30%"
                @close="setRoleDiologClose">
                <p>
                    当前的用户： {{userInfo.username}}
                </p>
                <p>
                    当前的角色： {{userInfo.role_name}}
                </p>
                <p>
                    分配新角色： <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in roleList"
                            :key="item.id"
                            :label="item.roleName"
                            :value="item.id">
                        </el-option>
                    </el-select>

                </p>
                <span slot="footer">
                    <el-button @click="setRoleDiologVisible = false">取 消</el-button>
                    <el-button type="primary" @click="saveRole">确 定</el-button>
                </span>
            </el-dialog>

        </el-card>
    </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 调用用户列表接口传入的参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      adddialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户的表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码的长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' }, { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' }, { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 编辑用户弹出框的显示与隐藏
      editDialogVisible: false,
      // 要编辑的用户数据
      editForm: {},
      // 编辑用户的表单验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' }, { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' }, { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDiologVisible: false,
      // 需要分配角色的用户信息
      userInfo: {},
      // 角色列表
      roleList: [],
      // 下拉框选中的角色id
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('/users', {
        params: this.queryInfo
      })
      this.userList = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 页码大小改变
    handleSizeChange(val) {
      this.queryInfo.pagesize = val
      this.getUserList()
    },
    // 当前页改变
    handleCurrentChange(val) {
      this.queryInfo.pagenum = val
      this.getUserList()
    },
    // 修改用户状态
    async UpdateUserState(userInfo) {
      console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('用户更新失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击确定按钮，添加用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return

        // 发送添加用户的请求
        const { data: res } = await this.$http.post('users', this.addForm)

        if (res.meta.status !== 201) return this.$message.error('添加用户失败！')

        this.$message.success('添加用户成功！')

        // 隐藏对话框
        this.adddialogVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 显示编辑用户对话框
    async showEditUserDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('编辑失败！')
      this.editForm = res.data

      this.editDialogVisible = true
    },
    // 监听关闭编辑用户表单事件
    editFormClose() {
      this.$refs.editFormRef.resetFields()
    },
    // 编辑用户
    editUser() {
      // 预验证
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return
        // 发送编辑用户信息的请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email, mobile: this.editForm.mobile
        })

        if (res.meta.status !== 200) return this.$message.error('更新用户失败！')

        // 关闭编辑用户对话框
        this.editDialogVisible = false
        // 刷新列表
        this.getUserList()
        // 提示成功信息
        this.$message.success('更新用户成功！')
      })
    },
    // 删除用户
    async delUser(id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // 发送删除用户的请求
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }
      this.getUserList()
      this.$message.success('删除成功！')
    },
    async showSetRoleDialog(userInfo) {
      this.userInfo = userInfo

      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.roleList = res.data
      console.log(this.roleList)
      // 显示分配角色对话框
      this.setRoleDiologVisible = true
    },
    // 保存角色列表
    async saveRole() {
      if (!this.selectedRoleId) {
        return this.$message.error('请先选择角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      })
      if (res.meta.status !== 200) {
        return this.$message.error('保存用户角色失败')
      }
      this.$message.success('保存用户角色成功')
      this.getUserList()
      this.setRoleDiologVisible = false
    },
    setRoleDiologClose() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
